Analysis of Distributed and Autonomous Scheduling Functions for 6tisch Networks

The 6TiSCH architecture is expected to play a significant role to enable the Internet of Things paradigm also in industrial environments, where reliability and timeliness are of paramount importance to support critical applications. Many research activities have focused on the Scheduling Function (SF) used for managing the allocation of communication resources in order to guarantee the application requirements. Two different approaches have mainly attracted the interest of researchers, namely distributed and autonomous scheduling. Although many different (both distributed and autonomous) SFs have been proposed and analyzed, a direct comparison of these two approaches is still missing. In this work, we compare some different SFs, using different behaviors in allocating resources, and investigate the pros and cons of using distributed or autonomous scheduling in four different scenarios, by means of both simulations and measurements in a real testbed. Based on our results, we also provide a number of guidelines to select the most appropriate SF, and its configuration parameters, depending on the specific use case

Despliegue de IWSN para la digitalización en Industria 4.0

[ES] Las redes LR-WPAN (Low Rate Wireless Personal Area Network) se han convertido en una de las herramientas fundamentales dentro del ecosistema de digitalización del mundo IoT, dadas sus grandes ventajas de flexibilidad, sencillez y bajo coste. Este tipo de redes deben presentar ciertas garantías de robustez para ser utilizadas en escenarios industriales, donde las IWSN (Industrial Wireless Sensor Network) sirven de mecanismo para nutrir a sistemas como BigData en los entornos de Industria 4.0. Para contribuir en el desarrollo de esta tecnología, se propone desplegar una red IWSN basada en IEEE 802.15.4, cuyos mecanismos de acceso permiten garantizar un cierto nivel de garantía en escenarios más agresivos como el industrial. Para ello, se realizarán tareas relacionadas con la planificación en redes sincronizadas, emulación de sistemas embebidos comerciales y análisis de resultados.[EN] LR-WPAN networks (Low-Rate Wireless Personal Area Network) have become in one of the most important tools in the IoT world, thanks to the flexibility, easiness, and low cost. This type of networks must show guarantees to be used in industrial scenarios, where the IWSN (Industrial Wireless Sensor Networks) are used in other systems, such as BigData in Industrial 4.0 environments. In order to contribute to the development of this technology, simulation and analysis of a IWSN network based on IEEE 802.15.4 is proposed, whose access mechanisms guarantee a good level of reliability in more aggressive scenarios, such as the industrial. To do so, tasks related with the scheduling process in syncronised networks will be done and analysis of results.Muñoz Clemente, D. (2021). Despliegue de IWSN para la digitalización en Industria 4.0. Universitat Politècnica de València. http://hdl.handle.net/10251/170108TFG